28781532

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{691}}^1$

素因数の和:803

約数の個数: 72

約数和(自身を含む): 79344720

約数和(自身を除く): 50563188

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 89, 117, 156, 178, 234, 267, 356, 468, 534, 691, 801, 1068, 1157, 1382, 1602, 2073, 2314, 2764, 3204, 3471, 4146, 4628, 6219, 6942, 8292, 8983, 10413, 12438, 13884, 17966, 20826, 24876, 26949, 35932, 41652, 53898, 61499, 80847, 107796, 122998, 161694, 184497, 245996, 323388, 368994, 553491, 737988, 799487, 1106982, 1598974, 2213964, 2398461, 3197948, 4796922, 7195383, 9593844, 14390766, 28781532]

約数ペア:

[(1, 28781532), (2, 14390766), (3, 9593844), (4, 7195383), (6, 4796922), (9, 3197948), (12, 2398461), (13, 2213964), (18, 1598974), (26, 1106982), (36, 799487), (39, 737988), (52, 553491), (78, 368994), (89, 323388), (117, 245996), (156, 184497), (178, 161694), (234, 122998), (267, 107796), (356, 80847), (468, 61499), (534, 53898), (691, 41652), (801, 35932), (1068, 26949), (1157, 24876), (1382, 20826), (1602, 17966), (2073, 13884), (2314, 12438), (2764, 10413), (3204, 8983), (3471, 8292), (4146, 6942), (4628, 6219)]