17813840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{653}}^1$

素因数の和:708

約数の個数: 80

約数和(自身を含む): 46711296

約数和(自身を除く): 28897456

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 62, 80, 88, 110, 124, 155, 176, 220, 248, 310, 341, 440, 496, 620, 653, 682, 880, 1240, 1306, 1364, 1705, 2480, 2612, 2728, 3265, 3410, 5224, 5456, 6530, 6820, 7183, 10448, 13060, 13640, 14366, 20243, 26120, 27280, 28732, 35915, 40486, 52240, 57464, 71830, 80972, 101215, 114928, 143660, 161944, 202430, 222673, 287320, 323888, 404860, 445346, 574640, 809720, 890692, 1113365, 1619440, 1781384, 2226730, 3562768, 4453460, 8906920, 17813840]

約数ペア:

[(1, 17813840), (2, 8906920), (4, 4453460), (5, 3562768), (8, 2226730), (10, 1781384), (11, 1619440), (16, 1113365), (20, 890692), (22, 809720), (31, 574640), (40, 445346), (44, 404860), (55, 323888), (62, 287320), (80, 222673), (88, 202430), (110, 161944), (124, 143660), (155, 114928), (176, 101215), (220, 80972), (248, 71830), (310, 57464), (341, 52240), (440, 40486), (496, 35915), (620, 28732), (653, 27280), (682, 26120), (880, 20243), (1240, 14366), (1306, 13640), (1364, 13060), (1705, 10448), (2480, 7183), (2612, 6820), (2728, 6530), (3265, 5456), (3410, 5224)]