787990240

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{2011}}^1$

素因数の和:2136

約数の個数: 96

約数和(自身を含む): 1946972160

約数和(自身を除く): 1158981920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 79, 80, 124, 155, 158, 160, 248, 310, 316, 395, 496, 620, 632, 790, 992, 1240, 1264, 1580, 2011, 2449, 2480, 2528, 3160, 4022, 4898, 4960, 6320, 8044, 9796, 10055, 12245, 12640, 16088, 19592, 20110, 24490, 32176, 39184, 40220, 48980, 62341, 64352, 78368, 80440, 97960, 124682, 158869, 160880, 195920, 249364, 311705, 317738, 321760, 391840, 498728, 623410, 635476, 794345, 997456, 1246820, 1270952, 1588690, 1994912, 2493640, 2541904, 3177380, 4924939, 4987280, 5083808, 6354760, 9849878, 9974560, 12709520, 19699756, 24624695, 25419040, 39399512, 49249390, 78799024, 98498780, 157598048, 196997560, 393995120, 787990240]

約数ペア:

[(1, 787990240), (2, 393995120), (4, 196997560), (5, 157598048), (8, 98498780), (10, 78799024), (16, 49249390), (20, 39399512), (31, 25419040), (32, 24624695), (40, 19699756), (62, 12709520), (79, 9974560), (80, 9849878), (124, 6354760), (155, 5083808), (158, 4987280), (160, 4924939), (248, 3177380), (310, 2541904), (316, 2493640), (395, 1994912), (496, 1588690), (620, 1270952), (632, 1246820), (790, 997456), (992, 794345), (1240, 635476), (1264, 623410), (1580, 498728), (2011, 391840), (2449, 321760), (2480, 317738), (2528, 311705), (3160, 249364), (4022, 195920), (4898, 160880), (4960, 158869), (6320, 124682), (8044, 97960), (9796, 80440), (10055, 78368), (12245, 64352), (12640, 62341), (16088, 48980), (19592, 40220), (20110, 39184), (24490, 32176)]