18491540

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{659}}^1$

素因数の和:752

約数の個数: 48

約数和(自身を含む): 41247360

約数和(自身を除く): 22755820

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 61, 92, 115, 122, 230, 244, 305, 460, 610, 659, 1220, 1318, 1403, 2636, 2806, 3295, 5612, 6590, 7015, 13180, 14030, 15157, 28060, 30314, 40199, 60628, 75785, 80398, 151570, 160796, 200995, 303140, 401990, 803980, 924577, 1849154, 3698308, 4622885, 9245770, 18491540]

約数ペア:

[(1, 18491540), (2, 9245770), (4, 4622885), (5, 3698308), (10, 1849154), (20, 924577), (23, 803980), (46, 401990), (61, 303140), (92, 200995), (115, 160796), (122, 151570), (230, 80398), (244, 75785), (305, 60628), (460, 40199), (610, 30314), (659, 28060), (1220, 15157), (1318, 14030), (1403, 13180), (2636, 7015), (2806, 6590), (3295, 5612)]