81117840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{17789}}^1$

素因数の和:17824

約数の個数: 80

約数和(自身を含む): 264715200

約数和(自身を除く): 183597360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 190, 228, 240, 285, 304, 380, 456, 570, 760, 912, 1140, 1520, 2280, 4560, 17789, 35578, 53367, 71156, 88945, 106734, 142312, 177890, 213468, 266835, 284624, 337991, 355780, 426936, 533670, 675982, 711560, 853872, 1013973, 1067340, 1351964, 1423120, 1689955, 2027946, 2134680, 2703928, 3379910, 4055892, 4269360, 5069865, 5407856, 6759820, 8111784, 10139730, 13519640, 16223568, 20279460, 27039280, 40558920, 81117840]

約数ペア:

[(1, 81117840), (2, 40558920), (3, 27039280), (4, 20279460), (5, 16223568), (6, 13519640), (8, 10139730), (10, 8111784), (12, 6759820), (15, 5407856), (16, 5069865), (19, 4269360), (20, 4055892), (24, 3379910), (30, 2703928), (38, 2134680), (40, 2027946), (48, 1689955), (57, 1423120), (60, 1351964), (76, 1067340), (80, 1013973), (95, 853872), (114, 711560), (120, 675982), (152, 533670), (190, 426936), (228, 355780), (240, 337991), (285, 284624), (304, 266835), (380, 213468), (456, 177890), (570, 142312), (760, 106734), (912, 88945), (1140, 71156), (1520, 53367), (2280, 35578), (4560, 17789)]