28321491750

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{8719}}^1$

素因数の和:8871

約数の個数: 128

約数和(自身を含む): 72869621760

約数和(自身を除く): 44548130010

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 61, 71, 75, 122, 125, 142, 150, 183, 213, 250, 305, 355, 366, 375, 426, 610, 710, 750, 915, 1065, 1525, 1775, 1830, 2130, 3050, 3550, 4331, 4575, 5325, 7625, 8662, 8719, 8875, 9150, 10650, 12993, 15250, 17438, 17750, 21655, 22875, 25986, 26157, 26625, 43310, 43595, 45750, 52314, 53250, 64965, 87190, 108275, 129930, 130785, 216550, 217975, 261570, 324825, 435950, 531859, 541375, 619049, 649650, 653925, 1063718, 1082750, 1089875, 1238098, 1307850, 1595577, 1624125, 1857147, 2179750, 2659295, 3095245, 3191154, 3248250, 3269625, 3714294, 5318590, 6190490, 6539250, 7977885, 9285735, 13296475, 15476225, 15955770, 18571470, 26592950, 30952450, 37761989, 39889425, 46428675, 66482375, 75523978, 77381125, 79778850, 92857350, 113285967, 132964750, 154762250, 188809945, 199447125, 226571934, 232143375, 377619890, 398894250, 464286750, 566429835, 944049725, 1132859670, 1888099450, 2832149175, 4720248625, 5664298350, 9440497250, 14160745875, 28321491750]

約数ペア:

[(1, 28321491750), (2, 14160745875), (3, 9440497250), (5, 5664298350), (6, 4720248625), (10, 2832149175), (15, 1888099450), (25, 1132859670), (30, 944049725), (50, 566429835), (61, 464286750), (71, 398894250), (75, 377619890), (122, 232143375), (125, 226571934), (142, 199447125), (150, 188809945), (183, 154762250), (213, 132964750), (250, 113285967), (305, 92857350), (355, 79778850), (366, 77381125), (375, 75523978), (426, 66482375), (610, 46428675), (710, 39889425), (750, 37761989), (915, 30952450), (1065, 26592950), (1525, 18571470), (1775, 15955770), (1830, 15476225), (2130, 13296475), (3050, 9285735), (3550, 7977885), (4331, 6539250), (4575, 6190490), (5325, 5318590), (7625, 3714294), (8662, 3269625), (8719, 3248250), (8875, 3191154), (9150, 3095245), (10650, 2659295), (12993, 2179750), (15250, 1857147), (17438, 1624125), (17750, 1595577), (21655, 1307850), (22875, 1238098), (25986, 1089875), (26157, 1082750), (26625, 1063718), (43310, 653925), (43595, 649650), (45750, 619049), (52314, 541375), (53250, 531859), (64965, 435950), (87190, 324825), (108275, 261570), (129930, 217975), (130785, 216550)]