28236780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1097}}^1$

素因数の和:1136

約数の個数: 144

約数和(自身を含む): 100717344

約数和(自身を除く): 72480564

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, 130, 132, 143, 156, 165, 180, 195, 198, 220, 234, 260, 286, 330, 390, 396, 429, 468, 495, 572, 585, 660, 715, 780, 858, 990, 1097, 1170, 1287, 1430, 1716, 1980, 2145, 2194, 2340, 2574, 2860, 3291, 4290, 4388, 5148, 5485, 6435, 6582, 8580, 9873, 10970, 12067, 12870, 13164, 14261, 16455, 19746, 21940, 24134, 25740, 28522, 32910, 36201, 39492, 42783, 48268, 49365, 57044, 60335, 65820, 71305, 72402, 85566, 98730, 108603, 120670, 128349, 142610, 144804, 156871, 171132, 181005, 197460, 213915, 217206, 241340, 256698, 285220, 313742, 362010, 427830, 434412, 470613, 513396, 543015, 627484, 641745, 724020, 784355, 855660, 941226, 1086030, 1283490, 1411839, 1568710, 1882452, 2172060, 2353065, 2566980, 2823678, 3137420, 4706130, 5647356, 7059195, 9412260, 14118390, 28236780]

約数ペア:

[(1, 28236780), (2, 14118390), (3, 9412260), (4, 7059195), (5, 5647356), (6, 4706130), (9, 3137420), (10, 2823678), (11, 2566980), (12, 2353065), (13, 2172060), (15, 1882452), (18, 1568710), (20, 1411839), (22, 1283490), (26, 1086030), (30, 941226), (33, 855660), (36, 784355), (39, 724020), (44, 641745), (45, 627484), (52, 543015), (55, 513396), (60, 470613), (65, 434412), (66, 427830), (78, 362010), (90, 313742), (99, 285220), (110, 256698), (117, 241340), (130, 217206), (132, 213915), (143, 197460), (156, 181005), (165, 171132), (180, 156871), (195, 144804), (198, 142610), (220, 128349), (234, 120670), (260, 108603), (286, 98730), (330, 85566), (390, 72402), (396, 71305), (429, 65820), (468, 60335), (495, 57044), (572, 49365), (585, 48268), (660, 42783), (715, 39492), (780, 36201), (858, 32910), (990, 28522), (1097, 25740), (1170, 24134), (1287, 21940), (1430, 19746), (1716, 16455), (1980, 14261), (2145, 13164), (2194, 12870), (2340, 12067), (2574, 10970), (2860, 9873), (3291, 8580), (4290, 6582), (4388, 6435), (5148, 5485)]