398663720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3533}}^1$

素因数の和:3595

約数の個数: 128

約数和(自身を含む): 1139927040

約数和(自身を除く): 741263320

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 31, 35, 40, 52, 56, 62, 65, 70, 91, 104, 124, 130, 140, 155, 182, 217, 248, 260, 280, 310, 364, 403, 434, 455, 520, 620, 728, 806, 868, 910, 1085, 1240, 1612, 1736, 1820, 2015, 2170, 2821, 3224, 3533, 3640, 4030, 4340, 5642, 7066, 8060, 8680, 11284, 14105, 14132, 16120, 17665, 22568, 24731, 28210, 28264, 35330, 45929, 49462, 56420, 70660, 91858, 98924, 109523, 112840, 123655, 141320, 183716, 197848, 219046, 229645, 247310, 321503, 367432, 438092, 459290, 494620, 547615, 643006, 766661, 876184, 918580, 989240, 1095230, 1286012, 1423799, 1533322, 1607515, 1837160, 2190460, 2572024, 2847598, 3066644, 3215030, 3833305, 4380920, 5695196, 6133288, 6430060, 7118995, 7666610, 9966593, 11390392, 12860120, 14237990, 15333220, 19933186, 28475980, 30666440, 39866372, 49832965, 56951960, 79732744, 99665930, 199331860, 398663720]

約数ペア:

[(1, 398663720), (2, 199331860), (4, 99665930), (5, 79732744), (7, 56951960), (8, 49832965), (10, 39866372), (13, 30666440), (14, 28475980), (20, 19933186), (26, 15333220), (28, 14237990), (31, 12860120), (35, 11390392), (40, 9966593), (52, 7666610), (56, 7118995), (62, 6430060), (65, 6133288), (70, 5695196), (91, 4380920), (104, 3833305), (124, 3215030), (130, 3066644), (140, 2847598), (155, 2572024), (182, 2190460), (217, 1837160), (248, 1607515), (260, 1533322), (280, 1423799), (310, 1286012), (364, 1095230), (403, 989240), (434, 918580), (455, 876184), (520, 766661), (620, 643006), (728, 547615), (806, 494620), (868, 459290), (910, 438092), (1085, 367432), (1240, 321503), (1612, 247310), (1736, 229645), (1820, 219046), (2015, 197848), (2170, 183716), (2821, 141320), (3224, 123655), (3533, 112840), (3640, 109523), (4030, 98924), (4340, 91858), (5642, 70660), (7066, 56420), (8060, 49462), (8680, 45929), (11284, 35330), (14105, 28264), (14132, 28210), (16120, 24731), (17665, 22568)]