28887372

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{269}}^1$

素因数の和:455

約数の個数: 72

約数和(自身を含む): 77641200

約数和(自身を除く): 48753828

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 157, 171, 228, 269, 314, 342, 471, 538, 628, 684, 807, 942, 1076, 1413, 1614, 1884, 2421, 2826, 2983, 3228, 4842, 5111, 5652, 5966, 8949, 9684, 10222, 11932, 15333, 17898, 20444, 26847, 30666, 35796, 42233, 45999, 53694, 61332, 84466, 91998, 107388, 126699, 168932, 183996, 253398, 380097, 506796, 760194, 802427, 1520388, 1604854, 2407281, 3209708, 4814562, 7221843, 9629124, 14443686, 28887372]

約数ペア:

[(1, 28887372), (2, 14443686), (3, 9629124), (4, 7221843), (6, 4814562), (9, 3209708), (12, 2407281), (18, 1604854), (19, 1520388), (36, 802427), (38, 760194), (57, 506796), (76, 380097), (114, 253398), (157, 183996), (171, 168932), (228, 126699), (269, 107388), (314, 91998), (342, 84466), (471, 61332), (538, 53694), (628, 45999), (684, 42233), (807, 35796), (942, 30666), (1076, 26847), (1413, 20444), (1614, 17898), (1884, 15333), (2421, 11932), (2826, 10222), (2983, 9684), (3228, 8949), (4842, 5966), (5111, 5652)]