128731840

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{683}}^1$

素因数の和:750

約数の個数: 112

約数和(自身を含む): 333573120

約数和(自身を除く): 204841280

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 32, 38, 40, 62, 64, 76, 80, 95, 124, 152, 155, 160, 190, 248, 304, 310, 320, 380, 496, 589, 608, 620, 683, 760, 992, 1178, 1216, 1240, 1366, 1520, 1984, 2356, 2480, 2732, 2945, 3040, 3415, 4712, 4960, 5464, 5890, 6080, 6830, 9424, 9920, 10928, 11780, 12977, 13660, 18848, 21173, 21856, 23560, 25954, 27320, 37696, 42346, 43712, 47120, 51908, 54640, 64885, 84692, 94240, 103816, 105865, 109280, 129770, 169384, 188480, 207632, 211730, 218560, 259540, 338768, 402287, 415264, 423460, 519080, 677536, 804574, 830528, 846920, 1038160, 1355072, 1609148, 1693840, 2011435, 2076320, 3218296, 3387680, 4022870, 4152640, 6436592, 6775360, 8045740, 12873184, 16091480, 25746368, 32182960, 64365920, 128731840]

約数ペア:

[(1, 128731840), (2, 64365920), (4, 32182960), (5, 25746368), (8, 16091480), (10, 12873184), (16, 8045740), (19, 6775360), (20, 6436592), (31, 4152640), (32, 4022870), (38, 3387680), (40, 3218296), (62, 2076320), (64, 2011435), (76, 1693840), (80, 1609148), (95, 1355072), (124, 1038160), (152, 846920), (155, 830528), (160, 804574), (190, 677536), (248, 519080), (304, 423460), (310, 415264), (320, 402287), (380, 338768), (496, 259540), (589, 218560), (608, 211730), (620, 207632), (683, 188480), (760, 169384), (992, 129770), (1178, 109280), (1216, 105865), (1240, 103816), (1366, 94240), (1520, 84692), (1984, 64885), (2356, 54640), (2480, 51908), (2732, 47120), (2945, 43712), (3040, 42346), (3415, 37696), (4712, 27320), (4960, 25954), (5464, 23560), (5890, 21856), (6080, 21173), (6830, 18848), (9424, 13660), (9920, 12977), (10928, 11780)]