208577908

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{1087}}^1$

素因数の和:1205

約数の個数: 72

約数和(自身を含む): 468840960

約数和(自身を除く): 260263052

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 89, 98, 154, 178, 196, 308, 356, 539, 623, 979, 1078, 1087, 1246, 1958, 2156, 2174, 2492, 3916, 4348, 4361, 6853, 7609, 8722, 11957, 13706, 15218, 17444, 23914, 27412, 30436, 47828, 47971, 53263, 83699, 95942, 96743, 106526, 167398, 191884, 193486, 213052, 334796, 386972, 585893, 677201, 1064173, 1171786, 1354402, 2128346, 2343572, 2708804, 4256692, 4740407, 7449211, 9480814, 14898422, 18961628, 29796844, 52144477, 104288954, 208577908]

約数ペア:

[(1, 208577908), (2, 104288954), (4, 52144477), (7, 29796844), (11, 18961628), (14, 14898422), (22, 9480814), (28, 7449211), (44, 4740407), (49, 4256692), (77, 2708804), (89, 2343572), (98, 2128346), (154, 1354402), (178, 1171786), (196, 1064173), (308, 677201), (356, 585893), (539, 386972), (623, 334796), (979, 213052), (1078, 193486), (1087, 191884), (1246, 167398), (1958, 106526), (2156, 96743), (2174, 95942), (2492, 83699), (3916, 53263), (4348, 47971), (4361, 47828), (6853, 30436), (7609, 27412), (8722, 23914), (11957, 17444), (13706, 15218)]