420171320

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{1913}}^1$

素因数の和:1977

約数の個数: 96

約数和(自身を含む): 1057676400

約数和(自身を除く): 637505080

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 34, 38, 40, 68, 76, 85, 95, 136, 152, 170, 190, 289, 323, 340, 380, 578, 646, 680, 760, 1156, 1292, 1445, 1615, 1913, 2312, 2584, 2890, 3230, 3826, 5491, 5780, 6460, 7652, 9565, 10982, 11560, 12920, 15304, 19130, 21964, 27455, 32521, 36347, 38260, 43928, 54910, 65042, 72694, 76520, 109820, 130084, 145388, 162605, 181735, 219640, 260168, 290776, 325210, 363470, 552857, 617899, 650420, 726940, 1105714, 1235798, 1300840, 1453880, 2211428, 2471596, 2764285, 3089495, 4422856, 4943192, 5528570, 6178990, 10504283, 11057140, 12357980, 21008566, 22114280, 24715960, 42017132, 52521415, 84034264, 105042830, 210085660, 420171320]

約数ペア:

[(1, 420171320), (2, 210085660), (4, 105042830), (5, 84034264), (8, 52521415), (10, 42017132), (17, 24715960), (19, 22114280), (20, 21008566), (34, 12357980), (38, 11057140), (40, 10504283), (68, 6178990), (76, 5528570), (85, 4943192), (95, 4422856), (136, 3089495), (152, 2764285), (170, 2471596), (190, 2211428), (289, 1453880), (323, 1300840), (340, 1235798), (380, 1105714), (578, 726940), (646, 650420), (680, 617899), (760, 552857), (1156, 363470), (1292, 325210), (1445, 290776), (1615, 260168), (1913, 219640), (2312, 181735), (2584, 162605), (2890, 145388), (3230, 130084), (3826, 109820), (5491, 76520), (5780, 72694), (6460, 65042), (7652, 54910), (9565, 43928), (10982, 38260), (11560, 36347), (12920, 32521), (15304, 27455), (19130, 21964)]