280591740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{991}}^1$

素因数の和:1041

約数の個数: 216

約数和(自身を含む): 1008518784

約数和(自身を除く): 727927044

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 13, 15, 18, 20, 22, 26, 30, 33, 36, 39, 44, 45, 52, 55, 60, 65, 66, 78, 90, 99, 110, 117, 121, 130, 132, 143, 156, 165, 180, 195, 198, 220, 234, 242, 260, 286, 330, 363, 390, 396, 429, 468, 484, 495, 572, 585, 605, 660, 715, 726, 780, 858, 990, 991, 1089, 1170, 1210, 1287, 1430, 1452, 1573, 1716, 1815, 1980, 1982, 2145, 2178, 2340, 2420, 2574, 2860, 2973, 3146, 3630, 3964, 4290, 4356, 4719, 4955, 5148, 5445, 5946, 6292, 6435, 7260, 7865, 8580, 8919, 9438, 9910, 10890, 10901, 11892, 12870, 12883, 14157, 14865, 15730, 17838, 18876, 19820, 21780, 21802, 23595, 25740, 25766, 28314, 29730, 31460, 32703, 35676, 38649, 43604, 44595, 47190, 51532, 54505, 56628, 59460, 64415, 65406, 70785, 77298, 89190, 94380, 98109, 109010, 115947, 119911, 128830, 130812, 141570, 141713, 154596, 163515, 178380, 193245, 196218, 218020, 231894, 239822, 257660, 283140, 283426, 327030, 359733, 386490, 392436, 425139, 463788, 479644, 490545, 566852, 579735, 599555, 654060, 708565, 719466, 772980, 850278, 981090, 1079199, 1159470, 1199110, 1275417, 1417130, 1438932, 1558843, 1700556, 1798665, 1962180, 2125695, 2158398, 2318940, 2398220, 2550834, 2834260, 3117686, 3597330, 4251390, 4316796, 4676529, 5101668, 5395995, 6235372, 6377085, 7194660, 7794215, 8502780, 9353058, 10791990, 12754170, 14029587, 15588430, 18706116, 21583980, 23382645, 25508340, 28059174, 31176860, 46765290, 56118348, 70147935, 93530580, 140295870, 280591740]

約数ペア:

[(1, 280591740), (2, 140295870), (3, 93530580), (4, 70147935), (5, 56118348), (6, 46765290), (9, 31176860), (10, 28059174), (11, 25508340), (12, 23382645), (13, 21583980), (15, 18706116), (18, 15588430), (20, 14029587), (22, 12754170), (26, 10791990), (30, 9353058), (33, 8502780), (36, 7794215), (39, 7194660), (44, 6377085), (45, 6235372), (52, 5395995), (55, 5101668), (60, 4676529), (65, 4316796), (66, 4251390), (78, 3597330), (90, 3117686), (99, 2834260), (110, 2550834), (117, 2398220), (121, 2318940), (130, 2158398), (132, 2125695), (143, 1962180), (156, 1798665), (165, 1700556), (180, 1558843), (195, 1438932), (198, 1417130), (220, 1275417), (234, 1199110), (242, 1159470), (260, 1079199), (286, 981090), (330, 850278), (363, 772980), (390, 719466), (396, 708565), (429, 654060), (468, 599555), (484, 579735), (495, 566852), (572, 490545), (585, 479644), (605, 463788), (660, 425139), (715, 392436), (726, 386490), (780, 359733), (858, 327030), (990, 283426), (991, 283140), (1089, 257660), (1170, 239822), (1210, 231894), (1287, 218020), (1430, 196218), (1452, 193245), (1573, 178380), (1716, 163515), (1815, 154596), (1980, 141713), (1982, 141570), (2145, 130812), (2178, 128830), (2340, 119911), (2420, 115947), (2574, 109010), (2860, 98109), (2973, 94380), (3146, 89190), (3630, 77298), (3964, 70785), (4290, 65406), (4356, 64415), (4719, 59460), (4955, 56628), (5148, 54505), (5445, 51532), (5946, 47190), (6292, 44595), (6435, 43604), (7260, 38649), (7865, 35676), (8580, 32703), (8919, 31460), (9438, 29730), (9910, 28314), (10890, 25766), (10901, 25740), (11892, 23595), (12870, 21802), (12883, 21780), (14157, 19820), (14865, 18876), (15730, 17838)]