1815459880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{3467}}^1$

素因数の和:3563

約数の個数: 128

約数和(自身を含む): 4719254400

約数和(自身を除く): 2903794520

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 53, 65, 76, 95, 104, 106, 130, 152, 190, 212, 247, 260, 265, 380, 424, 494, 520, 530, 689, 760, 988, 1007, 1060, 1235, 1378, 1976, 2014, 2120, 2470, 2756, 3445, 3467, 4028, 4940, 5035, 5512, 6890, 6934, 8056, 9880, 10070, 13091, 13780, 13868, 17335, 20140, 26182, 27560, 27736, 34670, 40280, 45071, 52364, 65455, 65873, 69340, 90142, 104728, 130910, 131746, 138680, 180284, 183751, 225355, 261820, 263492, 329365, 360568, 367502, 450710, 523640, 526984, 658730, 735004, 856349, 901420, 918755, 1317460, 1470008, 1712698, 1802840, 1837510, 2388763, 2634920, 3425396, 3491269, 3675020, 4281745, 4777526, 6850792, 6982538, 7350040, 8563490, 9555052, 11943815, 13965076, 17126980, 17456345, 19110104, 23887630, 27930152, 34253960, 34912690, 45386497, 47775260, 69825380, 90772994, 95550520, 139650760, 181545988, 226932485, 363091976, 453864970, 907729940, 1815459880]

約数ペア:

[(1, 1815459880), (2, 907729940), (4, 453864970), (5, 363091976), (8, 226932485), (10, 181545988), (13, 139650760), (19, 95550520), (20, 90772994), (26, 69825380), (38, 47775260), (40, 45386497), (52, 34912690), (53, 34253960), (65, 27930152), (76, 23887630), (95, 19110104), (104, 17456345), (106, 17126980), (130, 13965076), (152, 11943815), (190, 9555052), (212, 8563490), (247, 7350040), (260, 6982538), (265, 6850792), (380, 4777526), (424, 4281745), (494, 3675020), (520, 3491269), (530, 3425396), (689, 2634920), (760, 2388763), (988, 1837510), (1007, 1802840), (1060, 1712698), (1235, 1470008), (1378, 1317460), (1976, 918755), (2014, 901420), (2120, 856349), (2470, 735004), (2756, 658730), (3445, 526984), (3467, 523640), (4028, 450710), (4940, 367502), (5035, 360568), (5512, 329365), (6890, 263492), (6934, 261820), (8056, 225355), (9880, 183751), (10070, 180284), (13091, 138680), (13780, 131746), (13868, 130910), (17335, 104728), (20140, 90142), (26182, 69340), (27560, 65873), (27736, 65455), (34670, 52364), (40280, 45071)]