78312780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{683}}^1$

素因数の和:725

約数の個数: 216

約数和(自身を含む): 298024272

約数和(自身を除く): 219711492

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 28, 30, 35, 36, 39, 42, 45, 49, 52, 60, 63, 65, 70, 78, 84, 90, 91, 98, 105, 117, 126, 130, 140, 147, 156, 180, 182, 195, 196, 210, 234, 245, 252, 260, 273, 294, 315, 364, 390, 420, 441, 455, 468, 490, 546, 585, 588, 630, 637, 683, 735, 780, 819, 882, 910, 980, 1092, 1170, 1260, 1274, 1365, 1366, 1470, 1638, 1764, 1820, 1911, 2049, 2205, 2340, 2548, 2730, 2732, 2940, 3185, 3276, 3415, 3822, 4095, 4098, 4410, 4781, 5460, 5733, 6147, 6370, 6830, 7644, 8190, 8196, 8820, 8879, 9555, 9562, 10245, 11466, 12294, 12740, 13660, 14343, 16380, 17758, 19110, 19124, 20490, 22932, 23905, 24588, 26637, 28665, 28686, 30735, 33467, 35516, 38220, 40980, 43029, 44395, 47810, 53274, 57330, 57372, 61470, 62153, 66934, 71715, 79911, 86058, 88790, 95620, 100401, 106548, 114660, 122940, 124306, 133185, 133868, 143430, 159822, 167335, 172116, 177580, 186459, 200802, 215145, 248612, 266370, 286860, 301203, 310765, 319644, 334670, 372918, 399555, 401604, 430290, 435071, 502005, 532740, 559377, 602406, 621530, 669340, 745836, 799110, 860580, 870142, 932295, 1004010, 1118754, 1204812, 1243060, 1305213, 1506015, 1598220, 1740284, 1864590, 2008020, 2175355, 2237508, 2610426, 2796885, 3012030, 3729180, 3915639, 4350710, 5220852, 5593770, 6024060, 6526065, 7831278, 8701420, 11187540, 13052130, 15662556, 19578195, 26104260, 39156390, 78312780]

約数ペア:

[(1, 78312780), (2, 39156390), (3, 26104260), (4, 19578195), (5, 15662556), (6, 13052130), (7, 11187540), (9, 8701420), (10, 7831278), (12, 6526065), (13, 6024060), (14, 5593770), (15, 5220852), (18, 4350710), (20, 3915639), (21, 3729180), (26, 3012030), (28, 2796885), (30, 2610426), (35, 2237508), (36, 2175355), (39, 2008020), (42, 1864590), (45, 1740284), (49, 1598220), (52, 1506015), (60, 1305213), (63, 1243060), (65, 1204812), (70, 1118754), (78, 1004010), (84, 932295), (90, 870142), (91, 860580), (98, 799110), (105, 745836), (117, 669340), (126, 621530), (130, 602406), (140, 559377), (147, 532740), (156, 502005), (180, 435071), (182, 430290), (195, 401604), (196, 399555), (210, 372918), (234, 334670), (245, 319644), (252, 310765), (260, 301203), (273, 286860), (294, 266370), (315, 248612), (364, 215145), (390, 200802), (420, 186459), (441, 177580), (455, 172116), (468, 167335), (490, 159822), (546, 143430), (585, 133868), (588, 133185), (630, 124306), (637, 122940), (683, 114660), (735, 106548), (780, 100401), (819, 95620), (882, 88790), (910, 86058), (980, 79911), (1092, 71715), (1170, 66934), (1260, 62153), (1274, 61470), (1365, 57372), (1366, 57330), (1470, 53274), (1638, 47810), (1764, 44395), (1820, 43029), (1911, 40980), (2049, 38220), (2205, 35516), (2340, 33467), (2548, 30735), (2730, 28686), (2732, 28665), (2940, 26637), (3185, 24588), (3276, 23905), (3415, 22932), (3822, 20490), (4095, 19124), (4098, 19110), (4410, 17758), (4781, 16380), (5460, 14343), (5733, 13660), (6147, 12740), (6370, 12294), (6830, 11466), (7644, 10245), (8190, 9562), (8196, 9555), (8820, 8879)]