217503540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{13577}}^1$

素因数の和:13681

約数の個数: 72

約数和(自身を含む): 667222920

約数和(自身を除く): 449719380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 89, 90, 178, 180, 267, 356, 445, 534, 801, 890, 1068, 1335, 1602, 1780, 2670, 3204, 4005, 5340, 8010, 13577, 16020, 27154, 40731, 54308, 67885, 81462, 122193, 135770, 162924, 203655, 244386, 271540, 407310, 488772, 610965, 814620, 1208353, 1221930, 2416706, 2443860, 3625059, 4833412, 6041765, 7250118, 10875177, 12083530, 14500236, 18125295, 21750354, 24167060, 36250590, 43500708, 54375885, 72501180, 108751770, 217503540]

約数ペア:

[(1, 217503540), (2, 108751770), (3, 72501180), (4, 54375885), (5, 43500708), (6, 36250590), (9, 24167060), (10, 21750354), (12, 18125295), (15, 14500236), (18, 12083530), (20, 10875177), (30, 7250118), (36, 6041765), (45, 4833412), (60, 3625059), (89, 2443860), (90, 2416706), (178, 1221930), (180, 1208353), (267, 814620), (356, 610965), (445, 488772), (534, 407310), (801, 271540), (890, 244386), (1068, 203655), (1335, 162924), (1602, 135770), (1780, 122193), (2670, 81462), (3204, 67885), (4005, 54308), (5340, 40731), (8010, 27154), (13577, 16020)]