840780

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{173}}^1$

素因数の和:197

約数の個数: 72

約数和(自身を含む): 2660112

約数和(自身を除く): 1819332

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 173, 180, 243, 270, 324, 346, 405, 486, 519, 540, 692, 810, 865, 972, 1038, 1215, 1557, 1620, 1730, 2076, 2430, 2595, 3114, 3460, 4671, 4860, 5190, 6228, 7785, 9342, 10380, 14013, 15570, 18684, 23355, 28026, 31140, 42039, 46710, 56052, 70065, 84078, 93420, 140130, 168156, 210195, 280260, 420390, 840780]

約数ペア:

[(1, 840780), (2, 420390), (3, 280260), (4, 210195), (5, 168156), (6, 140130), (9, 93420), (10, 84078), (12, 70065), (15, 56052), (18, 46710), (20, 42039), (27, 31140), (30, 28026), (36, 23355), (45, 18684), (54, 15570), (60, 14013), (81, 10380), (90, 9342), (108, 7785), (135, 6228), (162, 5190), (173, 4860), (180, 4671), (243, 3460), (270, 3114), (324, 2595), (346, 2430), (405, 2076), (486, 1730), (519, 1620), (540, 1557), (692, 1215), (810, 1038), (865, 972)]