78720160

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{269}}^1$

素因数の和:374

約数の個数: 96

約数和(自身を含む): 195955200

約数和(自身を除く): 117235040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 59, 62, 80, 118, 124, 155, 160, 236, 248, 269, 295, 310, 472, 496, 538, 590, 620, 944, 992, 1076, 1180, 1240, 1345, 1829, 1888, 2152, 2360, 2480, 2690, 3658, 4304, 4720, 4960, 5380, 7316, 8339, 8608, 9145, 9440, 10760, 14632, 15871, 16678, 18290, 21520, 29264, 31742, 33356, 36580, 41695, 43040, 58528, 63484, 66712, 73160, 79355, 83390, 126968, 133424, 146320, 158710, 166780, 253936, 266848, 292640, 317420, 333560, 492001, 507872, 634840, 667120, 984002, 1269680, 1334240, 1968004, 2460005, 2539360, 3936008, 4920010, 7872016, 9840020, 15744032, 19680040, 39360080, 78720160]

約数ペア:

[(1, 78720160), (2, 39360080), (4, 19680040), (5, 15744032), (8, 9840020), (10, 7872016), (16, 4920010), (20, 3936008), (31, 2539360), (32, 2460005), (40, 1968004), (59, 1334240), (62, 1269680), (80, 984002), (118, 667120), (124, 634840), (155, 507872), (160, 492001), (236, 333560), (248, 317420), (269, 292640), (295, 266848), (310, 253936), (472, 166780), (496, 158710), (538, 146320), (590, 133424), (620, 126968), (944, 83390), (992, 79355), (1076, 73160), (1180, 66712), (1240, 63484), (1345, 58528), (1829, 43040), (1888, 41695), (2152, 36580), (2360, 33356), (2480, 31742), (2690, 29264), (3658, 21520), (4304, 18290), (4720, 16678), (4960, 15871), (5380, 14632), (7316, 10760), (8339, 9440), (8608, 9145)]