818191300

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{347}}^1$

素因数の和:470

約数の個数: 144

約数和(自身を含む): 2011746240

約数和(自身を除く): 1193554940

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 25, 34, 38, 50, 68, 73, 76, 85, 95, 100, 146, 170, 190, 292, 323, 340, 347, 365, 380, 425, 475, 646, 694, 730, 850, 950, 1241, 1292, 1387, 1388, 1460, 1615, 1700, 1735, 1825, 1900, 2482, 2774, 3230, 3470, 3650, 4964, 5548, 5899, 6205, 6460, 6593, 6935, 6940, 7300, 8075, 8675, 11798, 12410, 13186, 13870, 16150, 17350, 23579, 23596, 24820, 25331, 26372, 27740, 29495, 31025, 32300, 32965, 34675, 34700, 47158, 50662, 58990, 62050, 65930, 69350, 94316, 101324, 112081, 117895, 117980, 124100, 126655, 131860, 138700, 147475, 164825, 224162, 235790, 253310, 294950, 329650, 430627, 448324, 471580, 481289, 506620, 560405, 589475, 589900, 633275, 659300, 861254, 962578, 1120810, 1178950, 1266550, 1722508, 1925156, 2153135, 2241620, 2357900, 2406445, 2533100, 2802025, 4306270, 4812890, 5604050, 8181913, 8612540, 9625780, 10765675, 11208100, 12032225, 16363826, 21531350, 24064450, 32727652, 40909565, 43062700, 48128900, 81819130, 163638260, 204547825, 409095650, 818191300]

約数ペア:

[(1, 818191300), (2, 409095650), (4, 204547825), (5, 163638260), (10, 81819130), (17, 48128900), (19, 43062700), (20, 40909565), (25, 32727652), (34, 24064450), (38, 21531350), (50, 16363826), (68, 12032225), (73, 11208100), (76, 10765675), (85, 9625780), (95, 8612540), (100, 8181913), (146, 5604050), (170, 4812890), (190, 4306270), (292, 2802025), (323, 2533100), (340, 2406445), (347, 2357900), (365, 2241620), (380, 2153135), (425, 1925156), (475, 1722508), (646, 1266550), (694, 1178950), (730, 1120810), (850, 962578), (950, 861254), (1241, 659300), (1292, 633275), (1387, 589900), (1388, 589475), (1460, 560405), (1615, 506620), (1700, 481289), (1735, 471580), (1825, 448324), (1900, 430627), (2482, 329650), (2774, 294950), (3230, 253310), (3470, 235790), (3650, 224162), (4964, 164825), (5548, 147475), (5899, 138700), (6205, 131860), (6460, 126655), (6593, 124100), (6935, 117980), (6940, 117895), (7300, 112081), (8075, 101324), (8675, 94316), (11798, 69350), (12410, 65930), (13186, 62050), (13870, 58990), (16150, 50662), (17350, 47158), (23579, 34700), (23596, 34675), (24820, 32965), (25331, 32300), (26372, 31025), (27740, 29495)]