778849425

素因数分解:

$3^4\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{653}}^1$

素因数の和:725

約数の個数: 120

約数和(自身を含む): 1570018560

約数和(自身を除く): 791169135

約数列:

[1, 3, 5, 9, 15, 19, 25, 27, 31, 45, 57, 75, 81, 93, 95, 135, 155, 171, 225, 279, 285, 405, 465, 475, 513, 589, 653, 675, 775, 837, 855, 1395, 1425, 1539, 1767, 1959, 2025, 2325, 2511, 2565, 2945, 3265, 4185, 4275, 5301, 5877, 6975, 7695, 8835, 9795, 12407, 12555, 12825, 14725, 15903, 16325, 17631, 20243, 20925, 26505, 29385, 37221, 38475, 44175, 47709, 48975, 52893, 60729, 62035, 62775, 79515, 88155, 101215, 111663, 132525, 146925, 182187, 186105, 238545, 264465, 303645, 310175, 334989, 384617, 397575, 440775, 506075, 546561, 558315, 910935, 930525, 1004967, 1153851, 1192725, 1322325, 1518225, 1639683, 1674945, 1923085, 2732805, 2791575, 3461553, 4554675, 5024835, 5769255, 8198415, 8374725, 9615425, 10384659, 13664025, 17307765, 25124175, 28846275, 31153977, 40992075, 51923295, 86538825, 155769885, 259616475, 778849425]

約数ペア:

[(1, 778849425), (3, 259616475), (5, 155769885), (9, 86538825), (15, 51923295), (19, 40992075), (25, 31153977), (27, 28846275), (31, 25124175), (45, 17307765), (57, 13664025), (75, 10384659), (81, 9615425), (93, 8374725), (95, 8198415), (135, 5769255), (155, 5024835), (171, 4554675), (225, 3461553), (279, 2791575), (285, 2732805), (405, 1923085), (465, 1674945), (475, 1639683), (513, 1518225), (589, 1322325), (653, 1192725), (675, 1153851), (775, 1004967), (837, 930525), (855, 910935), (1395, 558315), (1425, 546561), (1539, 506075), (1767, 440775), (1959, 397575), (2025, 384617), (2325, 334989), (2511, 310175), (2565, 303645), (2945, 264465), (3265, 238545), (4185, 186105), (4275, 182187), (5301, 146925), (5877, 132525), (6975, 111663), (7695, 101215), (8835, 88155), (9795, 79515), (12407, 62775), (12555, 62035), (12825, 60729), (14725, 52893), (15903, 48975), (16325, 47709), (17631, 44175), (20243, 38475), (20925, 37221), (26505, 29385)]