20450250

素因数分解:

$2^1\times 3^2\times 5^3\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:233

約数の個数: 96

約数和(自身を含む): 56581200

約数和(自身を除く): 36130950

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 61, 75, 90, 122, 125, 149, 150, 183, 225, 250, 298, 305, 366, 375, 447, 450, 549, 610, 745, 750, 894, 915, 1098, 1125, 1341, 1490, 1525, 1830, 2235, 2250, 2682, 2745, 3050, 3725, 4470, 4575, 5490, 6705, 7450, 7625, 9089, 9150, 11175, 13410, 13725, 15250, 18178, 18625, 22350, 22875, 27267, 27450, 33525, 37250, 45445, 45750, 54534, 55875, 67050, 68625, 81801, 90890, 111750, 136335, 137250, 163602, 167625, 227225, 272670, 335250, 409005, 454450, 681675, 818010, 1136125, 1363350, 2045025, 2272250, 3408375, 4090050, 6816750, 10225125, 20450250]

約数ペア:

[(1, 20450250), (2, 10225125), (3, 6816750), (5, 4090050), (6, 3408375), (9, 2272250), (10, 2045025), (15, 1363350), (18, 1136125), (25, 818010), (30, 681675), (45, 454450), (50, 409005), (61, 335250), (75, 272670), (90, 227225), (122, 167625), (125, 163602), (149, 137250), (150, 136335), (183, 111750), (225, 90890), (250, 81801), (298, 68625), (305, 67050), (366, 55875), (375, 54534), (447, 45750), (450, 45445), (549, 37250), (610, 33525), (745, 27450), (750, 27267), (894, 22875), (915, 22350), (1098, 18625), (1125, 18178), (1341, 15250), (1490, 13725), (1525, 13410), (1830, 11175), (2235, 9150), (2250, 9089), (2682, 7625), (2745, 7450), (3050, 6705), (3725, 5490), (4470, 4575)]