128927880

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{677}}^1$

素因数の和:740

約数の個数: 144

約数和(自身を含む): 438672780

約数和(自身を除く): 309744900

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 30, 36, 40, 45, 46, 60, 69, 72, 90, 92, 115, 120, 138, 180, 184, 207, 230, 276, 345, 360, 414, 460, 529, 552, 677, 690, 828, 920, 1035, 1058, 1354, 1380, 1587, 1656, 2031, 2070, 2116, 2645, 2708, 2760, 3174, 3385, 4062, 4140, 4232, 4761, 5290, 5416, 6093, 6348, 6770, 7935, 8124, 8280, 9522, 10155, 10580, 12186, 12696, 13540, 15571, 15870, 16248, 19044, 20310, 21160, 23805, 24372, 27080, 30465, 31142, 31740, 38088, 40620, 46713, 47610, 48744, 60930, 62284, 63480, 77855, 81240, 93426, 95220, 121860, 124568, 140139, 155710, 186852, 190440, 233565, 243720, 280278, 311420, 358133, 373704, 467130, 560556, 622840, 700695, 716266, 934260, 1074399, 1121112, 1401390, 1432532, 1790665, 1868520, 2148798, 2802780, 2865064, 3223197, 3581330, 4297596, 5371995, 5605560, 6446394, 7162660, 8595192, 10743990, 12892788, 14325320, 16115985, 21487980, 25785576, 32231970, 42975960, 64463940, 128927880]

約数ペア:

[(1, 128927880), (2, 64463940), (3, 42975960), (4, 32231970), (5, 25785576), (6, 21487980), (8, 16115985), (9, 14325320), (10, 12892788), (12, 10743990), (15, 8595192), (18, 7162660), (20, 6446394), (23, 5605560), (24, 5371995), (30, 4297596), (36, 3581330), (40, 3223197), (45, 2865064), (46, 2802780), (60, 2148798), (69, 1868520), (72, 1790665), (90, 1432532), (92, 1401390), (115, 1121112), (120, 1074399), (138, 934260), (180, 716266), (184, 700695), (207, 622840), (230, 560556), (276, 467130), (345, 373704), (360, 358133), (414, 311420), (460, 280278), (529, 243720), (552, 233565), (677, 190440), (690, 186852), (828, 155710), (920, 140139), (1035, 124568), (1058, 121860), (1354, 95220), (1380, 93426), (1587, 81240), (1656, 77855), (2031, 63480), (2070, 62284), (2116, 60930), (2645, 48744), (2708, 47610), (2760, 46713), (3174, 40620), (3385, 38088), (4062, 31740), (4140, 31142), (4232, 30465), (4761, 27080), (5290, 24372), (5416, 23805), (6093, 21160), (6348, 20310), (6770, 19044), (7935, 16248), (8124, 15870), (8280, 15571), (9522, 13540), (10155, 12696), (10580, 12186)]