28558980

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{17}}^2\times {\mathrm{61}}^1$

素因数の和:116

約数の個数: 180

約数和(自身を含む): 96730788

約数和(自身を除く): 68171808

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 27, 30, 34, 36, 45, 51, 54, 60, 61, 68, 81, 85, 90, 102, 108, 122, 135, 153, 162, 170, 180, 183, 204, 244, 255, 270, 289, 305, 306, 324, 340, 366, 405, 459, 510, 540, 549, 578, 610, 612, 732, 765, 810, 867, 915, 918, 1020, 1037, 1098, 1156, 1220, 1377, 1445, 1530, 1620, 1647, 1734, 1830, 1836, 2074, 2196, 2295, 2601, 2745, 2754, 2890, 3060, 3111, 3294, 3468, 3660, 4148, 4335, 4590, 4941, 5185, 5202, 5490, 5508, 5780, 6222, 6588, 6885, 7803, 8235, 8670, 9180, 9333, 9882, 10370, 10404, 10980, 12444, 13005, 13770, 15555, 15606, 16470, 17340, 17629, 18666, 19764, 20740, 23409, 24705, 26010, 27540, 27999, 31110, 31212, 32940, 35258, 37332, 39015, 46665, 46818, 49410, 52020, 52887, 55998, 62220, 70516, 78030, 83997, 88145, 93330, 93636, 98820, 105774, 111996, 117045, 139995, 156060, 158661, 167994, 176290, 186660, 211548, 234090, 264435, 279990, 317322, 335988, 352580, 419985, 468180, 475983, 528870, 559980, 634644, 793305, 839970, 951966, 1057740, 1427949, 1586610, 1679940, 1903932, 2379915, 2855898, 3173220, 4759830, 5711796, 7139745, 9519660, 14279490, 28558980]

約数ペア:

[(1, 28558980), (2, 14279490), (3, 9519660), (4, 7139745), (5, 5711796), (6, 4759830), (9, 3173220), (10, 2855898), (12, 2379915), (15, 1903932), (17, 1679940), (18, 1586610), (20, 1427949), (27, 1057740), (30, 951966), (34, 839970), (36, 793305), (45, 634644), (51, 559980), (54, 528870), (60, 475983), (61, 468180), (68, 419985), (81, 352580), (85, 335988), (90, 317322), (102, 279990), (108, 264435), (122, 234090), (135, 211548), (153, 186660), (162, 176290), (170, 167994), (180, 158661), (183, 156060), (204, 139995), (244, 117045), (255, 111996), (270, 105774), (289, 98820), (305, 93636), (306, 93330), (324, 88145), (340, 83997), (366, 78030), (405, 70516), (459, 62220), (510, 55998), (540, 52887), (549, 52020), (578, 49410), (610, 46818), (612, 46665), (732, 39015), (765, 37332), (810, 35258), (867, 32940), (915, 31212), (918, 31110), (1020, 27999), (1037, 27540), (1098, 26010), (1156, 24705), (1220, 23409), (1377, 20740), (1445, 19764), (1530, 18666), (1620, 17629), (1647, 17340), (1734, 16470), (1830, 15606), (1836, 15555), (2074, 13770), (2196, 13005), (2295, 12444), (2601, 10980), (2745, 10404), (2754, 10370), (2890, 9882), (3060, 9333), (3111, 9180), (3294, 8670), (3468, 8235), (3660, 7803), (4148, 6885), (4335, 6588), (4590, 6222), (4941, 5780), (5185, 5508), (5202, 5490)]