28291840

素因数分解:

$2^8\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^2$

素因数の和:106

約数の個数: 108

約数和(自身を含む): 73068912

約数和(自身を除く): 44777072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 31, 32, 40, 46, 62, 64, 80, 92, 115, 124, 128, 155, 160, 184, 230, 248, 256, 310, 320, 368, 460, 496, 620, 640, 713, 736, 920, 961, 992, 1240, 1280, 1426, 1472, 1840, 1922, 1984, 2480, 2852, 2944, 3565, 3680, 3844, 3968, 4805, 4960, 5704, 5888, 7130, 7360, 7688, 7936, 9610, 9920, 11408, 14260, 14720, 15376, 19220, 19840, 22103, 22816, 28520, 29440, 30752, 38440, 39680, 44206, 45632, 57040, 61504, 76880, 88412, 91264, 110515, 114080, 123008, 153760, 176824, 182528, 221030, 228160, 246016, 307520, 353648, 442060, 456320, 615040, 707296, 884120, 912640, 1230080, 1414592, 1768240, 2829184, 3536480, 5658368, 7072960, 14145920, 28291840]

約数ペア:

[(1, 28291840), (2, 14145920), (4, 7072960), (5, 5658368), (8, 3536480), (10, 2829184), (16, 1768240), (20, 1414592), (23, 1230080), (31, 912640), (32, 884120), (40, 707296), (46, 615040), (62, 456320), (64, 442060), (80, 353648), (92, 307520), (115, 246016), (124, 228160), (128, 221030), (155, 182528), (160, 176824), (184, 153760), (230, 123008), (248, 114080), (256, 110515), (310, 91264), (320, 88412), (368, 76880), (460, 61504), (496, 57040), (620, 45632), (640, 44206), (713, 39680), (736, 38440), (920, 30752), (961, 29440), (992, 28520), (1240, 22816), (1280, 22103), (1426, 19840), (1472, 19220), (1840, 15376), (1922, 14720), (1984, 14260), (2480, 11408), (2852, 9920), (2944, 9610), (3565, 7936), (3680, 7688), (3844, 7360), (3968, 7130), (4805, 5888), (4960, 5704)]