388735440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{523}}^1$

素因数の和:721

約数の個数: 160

約数和(自身を含む): 1278727680

約数和(自身を除く): 889992240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 163, 190, 228, 240, 285, 304, 326, 380, 456, 489, 523, 570, 652, 760, 815, 912, 978, 1046, 1140, 1304, 1520, 1569, 1630, 1956, 2092, 2280, 2445, 2608, 2615, 3097, 3138, 3260, 3912, 4184, 4560, 4890, 5230, 6194, 6276, 6520, 7824, 7845, 8368, 9291, 9780, 9937, 10460, 12388, 12552, 13040, 15485, 15690, 18582, 19560, 19874, 20920, 24776, 25104, 29811, 30970, 31380, 37164, 39120, 39748, 41840, 46455, 49552, 49685, 59622, 61940, 62760, 74328, 79496, 85249, 92910, 99370, 119244, 123880, 125520, 148656, 149055, 158992, 170498, 185820, 198740, 238488, 247760, 255747, 298110, 340996, 371640, 397480, 426245, 476976, 511494, 596220, 681992, 743280, 794960, 852490, 1022988, 1192440, 1278735, 1363984, 1619731, 1704980, 2045976, 2384880, 2557470, 3239462, 3409960, 4091952, 4859193, 5114940, 6478924, 6819920, 8098655, 9718386, 10229880, 12957848, 16197310, 19436772, 20459760, 24295965, 25915696, 32394620, 38873544, 48591930, 64789240, 77747088, 97183860, 129578480, 194367720, 388735440]

約数ペア:

[(1, 388735440), (2, 194367720), (3, 129578480), (4, 97183860), (5, 77747088), (6, 64789240), (8, 48591930), (10, 38873544), (12, 32394620), (15, 25915696), (16, 24295965), (19, 20459760), (20, 19436772), (24, 16197310), (30, 12957848), (38, 10229880), (40, 9718386), (48, 8098655), (57, 6819920), (60, 6478924), (76, 5114940), (80, 4859193), (95, 4091952), (114, 3409960), (120, 3239462), (152, 2557470), (163, 2384880), (190, 2045976), (228, 1704980), (240, 1619731), (285, 1363984), (304, 1278735), (326, 1192440), (380, 1022988), (456, 852490), (489, 794960), (523, 743280), (570, 681992), (652, 596220), (760, 511494), (815, 476976), (912, 426245), (978, 397480), (1046, 371640), (1140, 340996), (1304, 298110), (1520, 255747), (1569, 247760), (1630, 238488), (1956, 198740), (2092, 185820), (2280, 170498), (2445, 158992), (2608, 149055), (2615, 148656), (3097, 125520), (3138, 123880), (3260, 119244), (3912, 99370), (4184, 92910), (4560, 85249), (4890, 79496), (5230, 74328), (6194, 62760), (6276, 61940), (6520, 59622), (7824, 49685), (7845, 49552), (8368, 46455), (9291, 41840), (9780, 39748), (9937, 39120), (10460, 37164), (12388, 31380), (12552, 30970), (13040, 29811), (15485, 25104), (15690, 24776), (18582, 20920), (19560, 19874)]