18489900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{431}}^1$

素因数の和:472

約数の個数: 144

約数和(自身を含む): 62995968

約数和(自身を除く): 44506068

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 13, 15, 20, 22, 25, 26, 30, 33, 39, 44, 50, 52, 55, 60, 65, 66, 75, 78, 100, 110, 130, 132, 143, 150, 156, 165, 195, 220, 260, 275, 286, 300, 325, 330, 390, 429, 431, 550, 572, 650, 660, 715, 780, 825, 858, 862, 975, 1100, 1293, 1300, 1430, 1650, 1716, 1724, 1950, 2145, 2155, 2586, 2860, 3300, 3575, 3900, 4290, 4310, 4741, 5172, 5603, 6465, 7150, 8580, 8620, 9482, 10725, 10775, 11206, 12930, 14223, 14300, 16809, 18964, 21450, 21550, 22412, 23705, 25860, 28015, 28446, 32325, 33618, 42900, 43100, 47410, 56030, 56892, 61633, 64650, 67236, 71115, 84045, 94820, 112060, 118525, 123266, 129300, 140075, 142230, 168090, 184899, 237050, 246532, 280150, 284460, 308165, 336180, 355575, 369798, 420225, 474100, 560300, 616330, 711150, 739596, 840450, 924495, 1232660, 1422300, 1540825, 1680900, 1848990, 3081650, 3697980, 4622475, 6163300, 9244950, 18489900]

約数ペア:

[(1, 18489900), (2, 9244950), (3, 6163300), (4, 4622475), (5, 3697980), (6, 3081650), (10, 1848990), (11, 1680900), (12, 1540825), (13, 1422300), (15, 1232660), (20, 924495), (22, 840450), (25, 739596), (26, 711150), (30, 616330), (33, 560300), (39, 474100), (44, 420225), (50, 369798), (52, 355575), (55, 336180), (60, 308165), (65, 284460), (66, 280150), (75, 246532), (78, 237050), (100, 184899), (110, 168090), (130, 142230), (132, 140075), (143, 129300), (150, 123266), (156, 118525), (165, 112060), (195, 94820), (220, 84045), (260, 71115), (275, 67236), (286, 64650), (300, 61633), (325, 56892), (330, 56030), (390, 47410), (429, 43100), (431, 42900), (550, 33618), (572, 32325), (650, 28446), (660, 28015), (715, 25860), (780, 23705), (825, 22412), (858, 21550), (862, 21450), (975, 18964), (1100, 16809), (1293, 14300), (1300, 14223), (1430, 12930), (1650, 11206), (1716, 10775), (1724, 10725), (1950, 9482), (2145, 8620), (2155, 8580), (2586, 7150), (2860, 6465), (3300, 5603), (3575, 5172), (3900, 4741), (4290, 4310)]