1980213040

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{3613}}^1$

素因数の和:3687

約数の個数: 160

約数和(自身を含む): 5420653056

約数和(自身を除く): 3440440016

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 31, 34, 40, 52, 62, 65, 68, 80, 85, 104, 124, 130, 136, 155, 170, 208, 221, 248, 260, 272, 310, 340, 403, 442, 496, 520, 527, 620, 680, 806, 884, 1040, 1054, 1105, 1240, 1360, 1612, 1768, 2015, 2108, 2210, 2480, 2635, 3224, 3536, 3613, 4030, 4216, 4420, 5270, 6448, 6851, 7226, 8060, 8432, 8840, 10540, 13702, 14452, 16120, 17680, 18065, 21080, 27404, 28904, 32240, 34255, 36130, 42160, 46969, 54808, 57808, 61421, 68510, 72260, 93938, 109616, 112003, 122842, 137020, 144520, 187876, 224006, 234845, 245684, 274040, 289040, 307105, 375752, 448012, 469690, 491368, 548080, 560015, 614210, 751504, 798473, 896024, 939380, 982736, 1120030, 1228420, 1456039, 1596946, 1792048, 1878760, 1904051, 2240060, 2456840, 2912078, 3193892, 3757520, 3808102, 3992365, 4480120, 4913680, 5824156, 6387784, 7280195, 7616204, 7984730, 8960240, 9520255, 11648312, 12775568, 14560390, 15232408, 15969460, 19040510, 23296624, 24752663, 29120780, 30464816, 31938920, 38081020, 49505326, 58241560, 63877840, 76162040, 99010652, 116483120, 123763315, 152324080, 198021304, 247526630, 396042608, 495053260, 990106520, 1980213040]

約数ペア:

[(1, 1980213040), (2, 990106520), (4, 495053260), (5, 396042608), (8, 247526630), (10, 198021304), (13, 152324080), (16, 123763315), (17, 116483120), (20, 99010652), (26, 76162040), (31, 63877840), (34, 58241560), (40, 49505326), (52, 38081020), (62, 31938920), (65, 30464816), (68, 29120780), (80, 24752663), (85, 23296624), (104, 19040510), (124, 15969460), (130, 15232408), (136, 14560390), (155, 12775568), (170, 11648312), (208, 9520255), (221, 8960240), (248, 7984730), (260, 7616204), (272, 7280195), (310, 6387784), (340, 5824156), (403, 4913680), (442, 4480120), (496, 3992365), (520, 3808102), (527, 3757520), (620, 3193892), (680, 2912078), (806, 2456840), (884, 2240060), (1040, 1904051), (1054, 1878760), (1105, 1792048), (1240, 1596946), (1360, 1456039), (1612, 1228420), (1768, 1120030), (2015, 982736), (2108, 939380), (2210, 896024), (2480, 798473), (2635, 751504), (3224, 614210), (3536, 560015), (3613, 548080), (4030, 491368), (4216, 469690), (4420, 448012), (5270, 375752), (6448, 307105), (6851, 289040), (7226, 274040), (8060, 245684), (8432, 234845), (8840, 224006), (10540, 187876), (13702, 144520), (14452, 137020), (16120, 122842), (17680, 112003), (18065, 109616), (21080, 93938), (27404, 72260), (28904, 68510), (32240, 61421), (34255, 57808), (36130, 54808), (42160, 46969)]