215692680

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{461}}^1\times {\mathrm{557}}^1$

素因数の和:1039

約数の個数: 128

約数和(自身を含む): 742452480

約数和(自身を除く): 526759800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 461, 557, 840, 922, 1114, 1383, 1671, 1844, 2228, 2305, 2766, 2785, 3227, 3342, 3688, 3899, 4456, 4610, 5532, 5570, 6454, 6684, 6915, 7798, 8355, 9220, 9681, 11064, 11140, 11697, 12908, 13368, 13830, 15596, 16135, 16710, 18440, 19362, 19495, 22280, 23394, 25816, 27660, 31192, 32270, 33420, 38724, 38990, 46788, 48405, 55320, 58485, 64540, 66840, 77448, 77980, 93576, 96810, 116970, 129080, 155960, 193620, 233940, 256777, 387240, 467880, 513554, 770331, 1027108, 1283885, 1540662, 1797439, 2054216, 2567770, 3081324, 3594878, 3851655, 5135540, 5392317, 6162648, 7189756, 7703310, 8987195, 10271080, 10784634, 14379512, 15406620, 17974390, 21569268, 26961585, 30813240, 35948780, 43138536, 53923170, 71897560, 107846340, 215692680]

約数ペア:

[(1, 215692680), (2, 107846340), (3, 71897560), (4, 53923170), (5, 43138536), (6, 35948780), (7, 30813240), (8, 26961585), (10, 21569268), (12, 17974390), (14, 15406620), (15, 14379512), (20, 10784634), (21, 10271080), (24, 8987195), (28, 7703310), (30, 7189756), (35, 6162648), (40, 5392317), (42, 5135540), (56, 3851655), (60, 3594878), (70, 3081324), (84, 2567770), (105, 2054216), (120, 1797439), (140, 1540662), (168, 1283885), (210, 1027108), (280, 770331), (420, 513554), (461, 467880), (557, 387240), (840, 256777), (922, 233940), (1114, 193620), (1383, 155960), (1671, 129080), (1844, 116970), (2228, 96810), (2305, 93576), (2766, 77980), (2785, 77448), (3227, 66840), (3342, 64540), (3688, 58485), (3899, 55320), (4456, 48405), (4610, 46788), (5532, 38990), (5570, 38724), (6454, 33420), (6684, 32270), (6915, 31192), (7798, 27660), (8355, 25816), (9220, 23394), (9681, 22280), (11064, 19495), (11140, 19362), (11697, 18440), (12908, 16710), (13368, 16135), (13830, 15596)]