19695990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{239}}^1$

素因数の和:357

約数の個数: 64

約数和(自身を含む): 49351680

約数和(自身を除く): 29655690

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 41, 67, 82, 123, 134, 201, 205, 239, 246, 335, 402, 410, 478, 615, 670, 717, 1005, 1195, 1230, 1434, 2010, 2390, 2747, 3585, 5494, 7170, 8241, 9799, 13735, 16013, 16482, 19598, 27470, 29397, 32026, 41205, 48039, 48995, 58794, 80065, 82410, 96078, 97990, 146985, 160130, 240195, 293970, 480390, 656533, 1313066, 1969599, 3282665, 3939198, 6565330, 9847995, 19695990]

約数ペア:

[(1, 19695990), (2, 9847995), (3, 6565330), (5, 3939198), (6, 3282665), (10, 1969599), (15, 1313066), (30, 656533), (41, 480390), (67, 293970), (82, 240195), (123, 160130), (134, 146985), (201, 97990), (205, 96078), (239, 82410), (246, 80065), (335, 58794), (402, 48995), (410, 48039), (478, 41205), (615, 32026), (670, 29397), (717, 27470), (1005, 19598), (1195, 16482), (1230, 16013), (1434, 13735), (2010, 9799), (2390, 8241), (2747, 7170), (3585, 5494)]