890455120

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^2\times {\mathrm{53}}^1\times {\mathrm{397}}^1$

素因数の和:509

約数の個数: 120

約数和(自身を含む): 2210624136

約数和(自身を除く): 1320169016

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 53, 80, 92, 106, 115, 184, 212, 230, 265, 368, 397, 424, 460, 529, 530, 794, 848, 920, 1058, 1060, 1219, 1588, 1840, 1985, 2116, 2120, 2438, 2645, 3176, 3970, 4232, 4240, 4876, 5290, 6095, 6352, 7940, 8464, 9131, 9752, 10580, 12190, 15880, 18262, 19504, 21041, 21160, 24380, 28037, 31760, 36524, 42082, 42320, 45655, 48760, 56074, 73048, 84164, 91310, 97520, 105205, 112148, 140185, 146096, 168328, 182620, 210013, 210410, 224296, 280370, 336656, 365240, 420026, 420820, 448592, 483943, 560740, 730480, 840052, 841640, 967886, 1050065, 1121480, 1680104, 1683280, 1935772, 2100130, 2242960, 2419715, 3360208, 3871544, 4200260, 4839430, 7743088, 8400520, 9678860, 11130689, 16801040, 19357720, 22261378, 38715440, 44522756, 55653445, 89045512, 111306890, 178091024, 222613780, 445227560, 890455120]

約数ペア:

[(1, 890455120), (2, 445227560), (4, 222613780), (5, 178091024), (8, 111306890), (10, 89045512), (16, 55653445), (20, 44522756), (23, 38715440), (40, 22261378), (46, 19357720), (53, 16801040), (80, 11130689), (92, 9678860), (106, 8400520), (115, 7743088), (184, 4839430), (212, 4200260), (230, 3871544), (265, 3360208), (368, 2419715), (397, 2242960), (424, 2100130), (460, 1935772), (529, 1683280), (530, 1680104), (794, 1121480), (848, 1050065), (920, 967886), (1058, 841640), (1060, 840052), (1219, 730480), (1588, 560740), (1840, 483943), (1985, 448592), (2116, 420820), (2120, 420026), (2438, 365240), (2645, 336656), (3176, 280370), (3970, 224296), (4232, 210410), (4240, 210013), (4876, 182620), (5290, 168328), (6095, 146096), (6352, 140185), (7940, 112148), (8464, 105205), (9131, 97520), (9752, 91310), (10580, 84164), (12190, 73048), (15880, 56074), (18262, 48760), (19504, 45655), (21041, 42320), (21160, 42082), (24380, 36524), (28037, 31760)]