27838720

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1$

素因数の和:280

約数の個数: 144

約数和(自身を含む): 82414080

約数和(自身を除く): 54575360

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 64, 65, 70, 80, 91, 104, 112, 128, 130, 140, 160, 182, 208, 224, 239, 256, 260, 280, 320, 364, 416, 448, 455, 478, 520, 560, 640, 728, 832, 896, 910, 956, 1040, 1120, 1195, 1280, 1456, 1664, 1673, 1792, 1820, 1912, 2080, 2240, 2390, 2912, 3107, 3328, 3346, 3640, 3824, 4160, 4480, 4780, 5824, 6214, 6692, 7280, 7648, 8320, 8365, 8960, 9560, 11648, 12428, 13384, 14560, 15296, 15535, 16640, 16730, 19120, 21749, 23296, 24856, 26768, 29120, 30592, 31070, 33460, 38240, 43498, 49712, 53536, 58240, 61184, 62140, 66920, 76480, 86996, 99424, 107072, 108745, 116480, 124280, 133840, 152960, 173992, 198848, 214144, 217490, 248560, 267680, 305920, 347984, 397696, 428288, 434980, 497120, 535360, 695968, 795392, 869960, 994240, 1070720, 1391936, 1739920, 1988480, 2141440, 2783872, 3479840, 3976960, 5567744, 6959680, 13919360, 27838720]

約数ペア:

[(1, 27838720), (2, 13919360), (4, 6959680), (5, 5567744), (7, 3976960), (8, 3479840), (10, 2783872), (13, 2141440), (14, 1988480), (16, 1739920), (20, 1391936), (26, 1070720), (28, 994240), (32, 869960), (35, 795392), (40, 695968), (52, 535360), (56, 497120), (64, 434980), (65, 428288), (70, 397696), (80, 347984), (91, 305920), (104, 267680), (112, 248560), (128, 217490), (130, 214144), (140, 198848), (160, 173992), (182, 152960), (208, 133840), (224, 124280), (239, 116480), (256, 108745), (260, 107072), (280, 99424), (320, 86996), (364, 76480), (416, 66920), (448, 62140), (455, 61184), (478, 58240), (520, 53536), (560, 49712), (640, 43498), (728, 38240), (832, 33460), (896, 31070), (910, 30592), (956, 29120), (1040, 26768), (1120, 24856), (1195, 23296), (1280, 21749), (1456, 19120), (1664, 16730), (1673, 16640), (1792, 15535), (1820, 15296), (1912, 14560), (2080, 13384), (2240, 12428), (2390, 11648), (2912, 9560), (3107, 8960), (3328, 8365), (3346, 8320), (3640, 7648), (3824, 7280), (4160, 6692), (4480, 6214), (4780, 5824)]