15387720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{397}}^1$

素因数の和:447

約数の個数: 128

約数和(自身を含む): 51580800

約数和(自身を除く): 36193080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 19, 20, 24, 30, 34, 38, 40, 51, 57, 60, 68, 76, 85, 95, 102, 114, 120, 136, 152, 170, 190, 204, 228, 255, 285, 323, 340, 380, 397, 408, 456, 510, 570, 646, 680, 760, 794, 969, 1020, 1140, 1191, 1292, 1588, 1615, 1938, 1985, 2040, 2280, 2382, 2584, 3176, 3230, 3876, 3970, 4764, 4845, 5955, 6460, 6749, 7543, 7752, 7940, 9528, 9690, 11910, 12920, 13498, 15086, 15880, 19380, 20247, 22629, 23820, 26996, 30172, 33745, 37715, 38760, 40494, 45258, 47640, 53992, 60344, 67490, 75430, 80988, 90516, 101235, 113145, 128231, 134980, 150860, 161976, 181032, 202470, 226290, 256462, 269960, 301720, 384693, 404940, 452580, 512924, 641155, 769386, 809880, 905160, 1025848, 1282310, 1538772, 1923465, 2564620, 3077544, 3846930, 5129240, 7693860, 15387720]

約数ペア:

[(1, 15387720), (2, 7693860), (3, 5129240), (4, 3846930), (5, 3077544), (6, 2564620), (8, 1923465), (10, 1538772), (12, 1282310), (15, 1025848), (17, 905160), (19, 809880), (20, 769386), (24, 641155), (30, 512924), (34, 452580), (38, 404940), (40, 384693), (51, 301720), (57, 269960), (60, 256462), (68, 226290), (76, 202470), (85, 181032), (95, 161976), (102, 150860), (114, 134980), (120, 128231), (136, 113145), (152, 101235), (170, 90516), (190, 80988), (204, 75430), (228, 67490), (255, 60344), (285, 53992), (323, 47640), (340, 45258), (380, 40494), (397, 38760), (408, 37715), (456, 33745), (510, 30172), (570, 26996), (646, 23820), (680, 22629), (760, 20247), (794, 19380), (969, 15880), (1020, 15086), (1140, 13498), (1191, 12920), (1292, 11910), (1588, 9690), (1615, 9528), (1938, 7940), (1985, 7752), (2040, 7543), (2280, 6749), (2382, 6460), (2584, 5955), (3176, 4845), (3230, 4764), (3876, 3970)]