18531990

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{137}}^1\times {\mathrm{167}}^1$

素因数の和:323

約数の個数: 80

約数和(自身を含む): 50494752

約数和(自身を除く): 31962762

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 137, 162, 167, 270, 274, 334, 405, 411, 501, 685, 810, 822, 835, 1002, 1233, 1370, 1503, 1670, 2055, 2466, 2505, 3006, 3699, 4110, 4509, 5010, 6165, 7398, 7515, 9018, 11097, 12330, 13527, 15030, 18495, 22194, 22545, 22879, 27054, 36990, 45090, 45758, 55485, 67635, 68637, 110970, 114395, 135270, 137274, 205911, 228790, 343185, 411822, 617733, 686370, 1029555, 1235466, 1853199, 2059110, 3088665, 3706398, 6177330, 9265995, 18531990]

約数ペア:

[(1, 18531990), (2, 9265995), (3, 6177330), (5, 3706398), (6, 3088665), (9, 2059110), (10, 1853199), (15, 1235466), (18, 1029555), (27, 686370), (30, 617733), (45, 411822), (54, 343185), (81, 228790), (90, 205911), (135, 137274), (137, 135270), (162, 114395), (167, 110970), (270, 68637), (274, 67635), (334, 55485), (405, 45758), (411, 45090), (501, 36990), (685, 27054), (810, 22879), (822, 22545), (835, 22194), (1002, 18495), (1233, 15030), (1370, 13527), (1503, 12330), (1670, 11097), (2055, 9018), (2466, 7515), (2505, 7398), (3006, 6165), (3699, 5010), (4110, 4509)]