30983960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{463}}^1$

素因数の和:720

約数の個数: 64

約数和(自身を含む): 80179200

約数和(自身を除く): 49195240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 239, 280, 463, 478, 926, 956, 1195, 1673, 1852, 1912, 2315, 2390, 3241, 3346, 3704, 4630, 4780, 6482, 6692, 8365, 9260, 9560, 12964, 13384, 16205, 16730, 18520, 25928, 32410, 33460, 64820, 66920, 110657, 129640, 221314, 442628, 553285, 774599, 885256, 1106570, 1549198, 2213140, 3098396, 3872995, 4426280, 6196792, 7745990, 15491980, 30983960]

約数ペア:

[(1, 30983960), (2, 15491980), (4, 7745990), (5, 6196792), (7, 4426280), (8, 3872995), (10, 3098396), (14, 2213140), (20, 1549198), (28, 1106570), (35, 885256), (40, 774599), (56, 553285), (70, 442628), (140, 221314), (239, 129640), (280, 110657), (463, 66920), (478, 64820), (926, 33460), (956, 32410), (1195, 25928), (1673, 18520), (1852, 16730), (1912, 16205), (2315, 13384), (2390, 12964), (3241, 9560), (3346, 9260), (3704, 8365), (4630, 6692), (4780, 6482)]