20868201220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{457}}^1\times {\mathrm{120167}}^1$

素因数の和:120652

約数の個数: 48

約数和(自身を含む): 46231032960

約数和(自身を除く): 25362831740

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 457, 914, 1828, 2285, 4570, 8683, 9140, 17366, 34732, 43415, 86830, 120167, 173660, 240334, 480668, 600835, 1201670, 2283173, 2403340, 4566346, 9132692, 11415865, 22831730, 45663460, 54916319, 109832638, 219665276, 274581595, 549163190, 1043410061, 1098326380, 2086820122, 4173640244, 5217050305, 10434100610, 20868201220]

約数ペア:

[(1, 20868201220), (2, 10434100610), (4, 5217050305), (5, 4173640244), (10, 2086820122), (19, 1098326380), (20, 1043410061), (38, 549163190), (76, 274581595), (95, 219665276), (190, 109832638), (380, 54916319), (457, 45663460), (914, 22831730), (1828, 11415865), (2285, 9132692), (4570, 4566346), (8683, 2403340), (9140, 2283173), (17366, 1201670), (34732, 600835), (43415, 480668), (86830, 240334), (120167, 173660)]