20319449072

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1483}}^1\times {\mathrm{3467}}^1$

素因数の和:4990

約数の個数: 80

約数和(自身を含む): 44671724160

約数和(自身を除く): 24352275088

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1483, 1976, 2966, 3467, 3952, 5932, 6934, 11864, 13868, 19279, 23728, 27736, 28177, 38558, 45071, 55472, 56354, 65873, 77116, 90142, 112708, 131746, 154232, 180284, 225416, 263492, 308464, 360568, 366301, 450832, 526984, 721136, 732602, 856349, 1053968, 1465204, 1712698, 2930408, 3425396, 5141561, 5860816, 6850792, 10283122, 13701584, 20566244, 41132488, 66840293, 82264976, 97689659, 133680586, 195379318, 267361172, 390758636, 534722344, 781517272, 1069444688, 1269965567, 1563034544, 2539931134, 5079862268, 10159724536, 20319449072]

約数ペア:

[(1, 20319449072), (2, 10159724536), (4, 5079862268), (8, 2539931134), (13, 1563034544), (16, 1269965567), (19, 1069444688), (26, 781517272), (38, 534722344), (52, 390758636), (76, 267361172), (104, 195379318), (152, 133680586), (208, 97689659), (247, 82264976), (304, 66840293), (494, 41132488), (988, 20566244), (1483, 13701584), (1976, 10283122), (2966, 6850792), (3467, 5860816), (3952, 5141561), (5932, 3425396), (6934, 2930408), (11864, 1712698), (13868, 1465204), (19279, 1053968), (23728, 856349), (27736, 732602), (28177, 721136), (38558, 526984), (45071, 450832), (55472, 366301), (56354, 360568), (65873, 308464), (77116, 263492), (90142, 225416), (112708, 180284), (131746, 154232)]