20350880

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{373}}^1$

素因数の和:430

約数の個数: 96

約数和(自身を含む): 54286848

約数和(自身を除く): 33935968

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 32, 40, 44, 55, 62, 80, 88, 110, 124, 155, 160, 176, 220, 248, 310, 341, 352, 373, 440, 496, 620, 682, 746, 880, 992, 1240, 1364, 1492, 1705, 1760, 1865, 2480, 2728, 2984, 3410, 3730, 4103, 4960, 5456, 5968, 6820, 7460, 8206, 10912, 11563, 11936, 13640, 14920, 16412, 20515, 23126, 27280, 29840, 32824, 41030, 46252, 54560, 57815, 59680, 65648, 82060, 92504, 115630, 127193, 131296, 164120, 185008, 231260, 254386, 328240, 370016, 462520, 508772, 635965, 656480, 925040, 1017544, 1271930, 1850080, 2035088, 2543860, 4070176, 5087720, 10175440, 20350880]

約数ペア:

[(1, 20350880), (2, 10175440), (4, 5087720), (5, 4070176), (8, 2543860), (10, 2035088), (11, 1850080), (16, 1271930), (20, 1017544), (22, 925040), (31, 656480), (32, 635965), (40, 508772), (44, 462520), (55, 370016), (62, 328240), (80, 254386), (88, 231260), (110, 185008), (124, 164120), (155, 131296), (160, 127193), (176, 115630), (220, 92504), (248, 82060), (310, 65648), (341, 59680), (352, 57815), (373, 54560), (440, 46252), (496, 41030), (620, 32824), (682, 29840), (746, 27280), (880, 23126), (992, 20515), (1240, 16412), (1364, 14920), (1492, 13640), (1705, 11936), (1760, 11563), (1865, 10912), (2480, 8206), (2728, 7460), (2984, 6820), (3410, 5968), (3730, 5456), (4103, 4960)]