221081980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{68659}}^1$

素因数の和:68698

約数の個数: 48

約数和(自身を含む): 553674240

約数和(自身を除く): 332592260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 68659, 137318, 274636, 343295, 480613, 686590, 961226, 1373180, 1579157, 1922452, 2403065, 3158314, 4806130, 6316628, 7895785, 9612260, 11054099, 15791570, 22108198, 31583140, 44216396, 55270495, 110540990, 221081980]

約数ペア:

[(1, 221081980), (2, 110540990), (4, 55270495), (5, 44216396), (7, 31583140), (10, 22108198), (14, 15791570), (20, 11054099), (23, 9612260), (28, 7895785), (35, 6316628), (46, 4806130), (70, 3158314), (92, 2403065), (115, 1922452), (140, 1579157), (161, 1373180), (230, 961226), (322, 686590), (460, 480613), (644, 343295), (805, 274636), (1610, 137318), (3220, 68659)]