31680390

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{587}}^1$

素因数の和:861

約数の個数: 64

約数和(自身を含む): 87381504

約数和(自身を除く): 55701114

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 257, 514, 587, 771, 1174, 1285, 1542, 1761, 1799, 2570, 2935, 3522, 3598, 3855, 4109, 5397, 5870, 7710, 8218, 8805, 8995, 10794, 12327, 17610, 17990, 20545, 24654, 26985, 41090, 53970, 61635, 123270, 150859, 301718, 452577, 754295, 905154, 1056013, 1508590, 2112026, 2262885, 3168039, 4525770, 5280065, 6336078, 10560130, 15840195, 31680390]

約数ペア:

[(1, 31680390), (2, 15840195), (3, 10560130), (5, 6336078), (6, 5280065), (7, 4525770), (10, 3168039), (14, 2262885), (15, 2112026), (21, 1508590), (30, 1056013), (35, 905154), (42, 754295), (70, 452577), (105, 301718), (210, 150859), (257, 123270), (514, 61635), (587, 53970), (771, 41090), (1174, 26985), (1285, 24654), (1542, 20545), (1761, 17990), (1799, 17610), (2570, 12327), (2935, 10794), (3522, 8995), (3598, 8805), (3855, 8218), (4109, 7710), (5397, 5870)]