221993940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{541}}^1\times {\mathrm{977}}^1$

素因数の和:1537

約数の個数: 96

約数和(自身を含む): 712422144

約数和(自身を除く): 490428204

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 541, 977, 1082, 1623, 1954, 2164, 2705, 2931, 3246, 3787, 3908, 4885, 5410, 5862, 6492, 6839, 7574, 8115, 9770, 10820, 11361, 11724, 13678, 14655, 15148, 16230, 18935, 19540, 20517, 22722, 27356, 29310, 32460, 34195, 37870, 41034, 45444, 56805, 58620, 68390, 75740, 82068, 102585, 113610, 136780, 205170, 227220, 410340, 528557, 1057114, 1585671, 2114228, 2642785, 3171342, 3699899, 5285570, 6342684, 7399798, 7928355, 10571140, 11099697, 14799596, 15856710, 18499495, 22199394, 31713420, 36998990, 44398788, 55498485, 73997980, 110996970, 221993940]

約数ペア:

[(1, 221993940), (2, 110996970), (3, 73997980), (4, 55498485), (5, 44398788), (6, 36998990), (7, 31713420), (10, 22199394), (12, 18499495), (14, 15856710), (15, 14799596), (20, 11099697), (21, 10571140), (28, 7928355), (30, 7399798), (35, 6342684), (42, 5285570), (60, 3699899), (70, 3171342), (84, 2642785), (105, 2114228), (140, 1585671), (210, 1057114), (420, 528557), (541, 410340), (977, 227220), (1082, 205170), (1623, 136780), (1954, 113610), (2164, 102585), (2705, 82068), (2931, 75740), (3246, 68390), (3787, 58620), (3908, 56805), (4885, 45444), (5410, 41034), (5862, 37870), (6492, 34195), (6839, 32460), (7574, 29310), (8115, 27356), (9770, 22722), (10820, 20517), (11361, 19540), (11724, 18935), (13678, 16230), (14655, 15148)]