18840065720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1913}}^1\times {\mathrm{2069}}^1$

素因数の和:4017

約数の個数: 128

約数和(自身を含む): 51347260800

約数和(自身を除く): 32507195080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 56, 68, 70, 85, 119, 136, 140, 170, 238, 280, 340, 476, 595, 680, 952, 1190, 1913, 2069, 2380, 3826, 4138, 4760, 7652, 8276, 9565, 10345, 13391, 14483, 15304, 16552, 19130, 20690, 26782, 28966, 32521, 35173, 38260, 41380, 53564, 57932, 65042, 66955, 70346, 72415, 76520, 82760, 107128, 115864, 130084, 133910, 140692, 144830, 162605, 175865, 227647, 246211, 260168, 267820, 281384, 289660, 325210, 351730, 455294, 492422, 535640, 579320, 650420, 703460, 910588, 984844, 1138235, 1231055, 1300840, 1406920, 1821176, 1969688, 2276470, 2462110, 3957997, 4552940, 4924220, 7915994, 9105880, 9848440, 15831988, 19789985, 27705979, 31663976, 39579970, 55411958, 67285949, 79159940, 110823916, 134571898, 138529895, 158319880, 221647832, 269143796, 277059790, 336429745, 471001643, 538287592, 554119580, 672859490, 942003286, 1108239160, 1345718980, 1884006572, 2355008215, 2691437960, 3768013144, 4710016430, 9420032860, 18840065720]

約数ペア:

[(1, 18840065720), (2, 9420032860), (4, 4710016430), (5, 3768013144), (7, 2691437960), (8, 2355008215), (10, 1884006572), (14, 1345718980), (17, 1108239160), (20, 942003286), (28, 672859490), (34, 554119580), (35, 538287592), (40, 471001643), (56, 336429745), (68, 277059790), (70, 269143796), (85, 221647832), (119, 158319880), (136, 138529895), (140, 134571898), (170, 110823916), (238, 79159940), (280, 67285949), (340, 55411958), (476, 39579970), (595, 31663976), (680, 27705979), (952, 19789985), (1190, 15831988), (1913, 9848440), (2069, 9105880), (2380, 7915994), (3826, 4924220), (4138, 4552940), (4760, 3957997), (7652, 2462110), (8276, 2276470), (9565, 1969688), (10345, 1821176), (13391, 1406920), (14483, 1300840), (15304, 1231055), (16552, 1138235), (19130, 984844), (20690, 910588), (26782, 703460), (28966, 650420), (32521, 579320), (35173, 535640), (38260, 492422), (41380, 455294), (53564, 351730), (57932, 325210), (65042, 289660), (66955, 281384), (70346, 267820), (72415, 260168), (76520, 246211), (82760, 227647), (107128, 175865), (115864, 162605), (130084, 144830), (133910, 140692)]