664326280

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{179}}^1$

素因数の和:335

約数の個数: 128

約数和(自身を含む): 1611187200

約数和(自身を除く): 946860920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 41, 62, 73, 82, 124, 146, 155, 164, 179, 205, 248, 292, 310, 328, 358, 365, 410, 584, 620, 716, 730, 820, 895, 1240, 1271, 1432, 1460, 1640, 1790, 2263, 2542, 2920, 2993, 3580, 4526, 5084, 5549, 5986, 6355, 7160, 7339, 9052, 10168, 11098, 11315, 11972, 12710, 13067, 14678, 14965, 18104, 22196, 22630, 23944, 25420, 26134, 27745, 29356, 29930, 36695, 44392, 45260, 50840, 52268, 55490, 58712, 59860, 65335, 73390, 90520, 92783, 104536, 110980, 119720, 130670, 146780, 185566, 221960, 227509, 261340, 293560, 371132, 405077, 455018, 463915, 522680, 535747, 742264, 810154, 910036, 927830, 1071494, 1137545, 1620308, 1820072, 1855660, 2025385, 2142988, 2275090, 2678735, 3240616, 3711320, 4050770, 4285976, 4550180, 5357470, 8101540, 9100360, 10714940, 16203080, 16608157, 21429880, 33216314, 66432628, 83040785, 132865256, 166081570, 332163140, 664326280]

約数ペア:

[(1, 664326280), (2, 332163140), (4, 166081570), (5, 132865256), (8, 83040785), (10, 66432628), (20, 33216314), (31, 21429880), (40, 16608157), (41, 16203080), (62, 10714940), (73, 9100360), (82, 8101540), (124, 5357470), (146, 4550180), (155, 4285976), (164, 4050770), (179, 3711320), (205, 3240616), (248, 2678735), (292, 2275090), (310, 2142988), (328, 2025385), (358, 1855660), (365, 1820072), (410, 1620308), (584, 1137545), (620, 1071494), (716, 927830), (730, 910036), (820, 810154), (895, 742264), (1240, 535747), (1271, 522680), (1432, 463915), (1460, 455018), (1640, 405077), (1790, 371132), (2263, 293560), (2542, 261340), (2920, 227509), (2993, 221960), (3580, 185566), (4526, 146780), (5084, 130670), (5549, 119720), (5986, 110980), (6355, 104536), (7160, 92783), (7339, 90520), (9052, 73390), (10168, 65335), (11098, 59860), (11315, 58712), (11972, 55490), (12710, 52268), (13067, 50840), (14678, 45260), (14965, 44392), (18104, 36695), (22196, 29930), (22630, 29356), (23944, 27745), (25420, 26134)]