1617994780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{7229}}^1$

素因数の和:7307

約数の個数: 72

約数和(自身を含む): 3702222720

約数和(自身を除く): 2084227940

約数列:

[1, 2, 4, 5, 10, 19, 20, 31, 38, 62, 76, 95, 124, 155, 190, 310, 361, 380, 589, 620, 722, 1178, 1444, 1805, 2356, 2945, 3610, 5890, 7220, 7229, 11191, 11780, 14458, 22382, 28916, 36145, 44764, 55955, 72290, 111910, 137351, 144580, 223820, 224099, 274702, 448198, 549404, 686755, 896396, 1120495, 1373510, 2240990, 2609669, 2747020, 4257881, 4481980, 5219338, 8515762, 10438676, 13048345, 17031524, 21289405, 26096690, 42578810, 52193380, 80899739, 85157620, 161799478, 323598956, 404498695, 808997390, 1617994780]

約数ペア:

[(1, 1617994780), (2, 808997390), (4, 404498695), (5, 323598956), (10, 161799478), (19, 85157620), (20, 80899739), (31, 52193380), (38, 42578810), (62, 26096690), (76, 21289405), (95, 17031524), (124, 13048345), (155, 10438676), (190, 8515762), (310, 5219338), (361, 4481980), (380, 4257881), (589, 2747020), (620, 2609669), (722, 2240990), (1178, 1373510), (1444, 1120495), (1805, 896396), (2356, 686755), (2945, 549404), (3610, 448198), (5890, 274702), (7220, 224099), (7229, 223820), (11191, 144580), (11780, 137351), (14458, 111910), (22382, 72290), (28916, 55955), (36145, 44764)]